Yang leaves without smiv2:oid directive are not shown well in snmpwalk

[doron2020]

Hello Olof, it is Doron & Stas from Siklu team

We have a problem that last item OID in a list is not properly shown in snmpwalk or it is not shown at all.

In this example (Attached) the last oid item in the list component is 1.3.6.1.2.1.47.1.1.1.1.16

When we do snmpwalk on oid 16 we get this error (No Such Object) even thou this item was filled with dada:

snmpwalk -v2c -c public 10.40.0.156 1.3.6.1.2.1.47.1.1.1.1.16
iso.3.6.1.2.1.47.1.1.1.1.16 = No Such Object available on this agent at this OID

snmpwalk on the item before it (oid 13) looks ok:

snmpwalk -v2c -c public 10.40.0.156 1.3.6.1.2.1.47.1.1.1.1.13
iso.3.6.1.2.1.47.1.1.1.1.13.1 = Hex-STRING: 4D 48 2D 42 33 36 36 2D 43 43 50 00

Now If we put the last oid item (oid 16) in comment

               //   smiv2:max-access "read-only";
               //   smiv2:oid "1.3.6.1.2.1.47.1.1.1.1.16";

This is the new result of snmpwalk for oid 13

snmpwalk -v2c -c public 10.40.0.156 1.3.6.1.2.1.47.1.1.1.1.13
iso.3.6.1.2.1.47.1.1.1.1.13.1 = Hex-STRING: 4D 48 2D 42 33 36 36 2D 43 43 50 00
iso.3.6.1.2.1.47.1.1.1.1.13.1.1 = INTEGER: 1 // an extra line is added.

Also some other items are defected as a result of commenting oid 16. For example oid 6

snmpwalk -v2c -c public 10.40.0.156 1.3.6.1.2.1.47.1.1.1.1.6
iso.3.6.1.2.1.47.1.1.1.1.6.1 = INTEGER: -1
iso.3.6.1.2.1.47.1.1.1.1.6.2 = INTEGER: 0
iso.3.6.1.2.1.47.1.1.1.1.6.3 = INTEGER: 1
iso.3.6.1.2.1.47.1.1.1.1.6.3.3 = INTEGER: 0 // extra line
iso.3.6.1.2.1.47.1.1.1.1.6.4 = INTEGER: 2
iso.3.6.1.2.1.47.1.1.1.1.6.4.4 = INTEGER: 0 // extra line
iso.3.6.1.2.1.47.1.1.1.1.6.5 = INTEGER: 3
iso.3.6.1.2.1.47.1.1.1.1.6.5.5 = INTEGER: 0 // extra line
..

This is the correct outoput of oid 6 when there is no comment for oid 16:

iso.3.6.1.2.1.47.1.1.1.1.6.1 = INTEGER: -1
iso.3.6.1.2.1.47.1.1.1.1.6.2 = INTEGER: 0
iso.3.6.1.2.1.47.1.1.1.1.6.3 = INTEGER: 1
iso.3.6.1.2.1.47.1.1.1.1.6.4 = INTEGER: 2
iso.3.6.1.2.1.47.1.1.1.1.6.5 = INTEGER: 3
...

Attached the yang file

Thank you
Doron & Stas

radio-bridge-tg-inventory.yang.txt

[krihal]

Hi,

I'll see if I can reproduce this bug as well just like #396.

Thanks,
/K

[krihal]

Hi,

Can you share the MIB with us for this one as well? We'd like to test to convert the MIB to YANG using smidump and reproduce the error.

BR

[doron2020]

I have changed the description of bug from "snmwalk for last OID in list is not shown properly" to "Yang leaves without smiv2:oid directive are not shown well in snmpwalk" since this is the actual problem. Leaves without smiv2:oid directive should be ignored in snmpwalk.
We have a solution to that and will suggest a fix to clicon/clixon

[olofhagsand]

The PR does not work properly, there are warnings and fails in docker/CI

[olofhagsand]

PR merged with master, please verify and close if OK